A new breed of trash in SoloQ

I've been noticing lately that there is a new breed of trash player in SoloQ. Players so bad that when they leave, a losing game actually becomes a winning game. I've won more 4v5s in the last 3 months than I have ever won in the 4 years prior. All because some feeding rubbish bin rage quits half way through the game. Has anyone else noticed this trend recently?